HEI upgrade

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Haus1776
Registered user
Posts: 1
Joined: Sat Jun 11, 2022 6:23 am

HEI upgrade

Post by Haus1776 »

Quick question. I'm replacing the stock Mallory distributor with a HEI distributor and was wondering if I need to replace the spark plugs with a different heat or just adjust the gap.
mrrudely
Sporadic User
Posts: 180
Joined: Sat Jun 08, 2019 11:52 am
Location: Marina Del Rey, CA

Re: HEI upgrade

Post by mrrudely »

I don't know the answer
Doug at AAA Marine did not say anything about changing the plugs
He just told me to gap them at .055
Also new higher voltage spark plug wires

rr
10 meter mid cabin
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prowlersfish
2024 Gold Support
2024 Gold Support
Posts: 12645
Joined: Sat Nov 05, 2005 6:56 pm
Location: Lower Chesapeake Bay ,Va

Re: HEI upgrade

Post by prowlersfish »

use the same plugs
Boating is good for the soul
77/78 TROJAN F36 Conv.
6BTA Cummins diesels
Life is to short for a ugly boat :D
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